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Laboratory Management
Éidín ChristieOffice of Environmental Assessment,
Environmental Protection Agency,Inniscarra,
Cork
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EPA Licence conditions
n Analysis shall be undertaken by competent staff in accordance with documented operating procedures;
n Such procedures shall be assessed for their suitability for the test matrix and performance characteristics determined;
n Such procedures shall be subject to a programme of Analytical Quality Control using control standards with evaluation of test responses;
n Where analysis is sub-contracted it shall be to a competent laboratory.
n Monitoring and analysis equipment shall be operated and maintained as necessary so that monitoring accurately reflects the emission or discharge.
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Laboratory Management
n Policyn Staffn Facilitiesn Equipmentn Proceduresn Documentationn Recordsn Quality Controln Review
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Policy
n Commitmentn Documented policy
endorsed by senior management
n Documented Quality Manualbased on ISO17025?
n Evidence of Review of System
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Laboratory Audit
Is a documented quality manual in place?
Is the quality manual based on the requirements of ISO 17025?
Does the quality manager conduct audits to assess compliance with systems and methods?
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Staff
Licence Condition:
Analysis shall be undertaken by competent staff
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Staff
n Managementn Documented Commitmentn Qualified and Experiencedn Nominated Deputyn Organisation structure for laboratory
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Laboratory audit
LABORATORY MANAGEMENT:
Is there a nominated manager & deputy who are suitably qualified and experienced?
Is there a suitably qualified quality control manager responsible for all quality control activities in the laboratory?
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Staff
n Staff n Adequate numbern Criteria for selection – qualifications/experiencen Training procedures – assessment of competencen Training Records – up to date, retraining if
necessaryn Review of training
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Training Procedure - example
Policy : It is the policy of the Laboratory that staff shall be required to demonstrate competency in both general procedures and specific test methods before undertaking reporting of analytical data.
Procedure :
1. Preparation - Familiarize themselves with laboratory procedures, test method and instructions on the use of test equipment.
2. Observation - observe the test being undertaken by a competent person, the trainer.
3. Supervision - undertake the test on samples / standards under the guidance of the trainer.
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Training Procedure - example
4. Comparative Performance Test – Asses performance by having both trainer and trainee undertake the analyses of real samples together with relevant AQCs for the test method.
5. Competence Assessment - For trainee competence to have been demonstrated the difference between comparable measurements should be within the precision criteria set out within the test method.
6. Registration – Training record signed/approved
7. On-going competence – External QCs
8. Retraining – if necessary
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Laboratory audit
STAFF COMPETENCY:
n Is the laboratory manager supported by an adequate number of qualified staff, trained in the principles and practice of relevant areas of analysis;
n Is a training procedure in place for laboratory staff? (This procedures should cover both analytical procedures and the relevant principles and practice of analysis, including calibration and internal and external analytical quality control)
n Do the training procedures set criteria and method of assessment of the competence of staff to conduct analysis?
n Are staff training records in place and kept up to date? (a training record should set out clearly those procedures and practices in which staff have been trained, the dates and results (competency) of that training, the dates and results of audits of training and any re-training and the results of any annual review)
Outcome :
Signed by Trainer: _______________________
Quality Manager: ________________________ Date: _______________
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Documented Operating Procedures
Licence conditions:Analysis shall be undertaken in accordance with documented
operating procedures
Sampling and analysis of all pollutants ….as well as reference measurement methods to calibrate automated measurement
systems shall be carried out in accordance with CEN-standards. If CEN standards are not available, ISO, national or international
standards, which will ensure the provision of data of an equivalent scientific quality, shall apply.
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Documented Operating Procedures
n Documented SOPs in place for all relevant methods
nSampling/sample handlingnAnalysisnCalibrationnQualitynTraining
ISO 78-2:1999 Chemistry --- Layout for standards--- Part 2: Methods of chemical analysis
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Documented Operating Procedures
1. Safety PrecautionsHazards associated, precautions required
2. Introduction and Scope of MethodDefine background to parameter, applicability and range of the test method
3. PrincipleChemical principles on which method is based
4. InterferencesDetails of known interferences and remedial measures
5. Sampling and PreservationsSpecific sampling preservation required and timeframe for completion of testing
6. Reagents and MaterialsAs required to carry out the test
7. ApparatusAs required to carry out analysis
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Documented Operating Procedures
8. Instrument calibration/Calibration standardsPreparation and storage of calibration standards and instrument calibration
9. QC Standards and proceduresPreparation and storage of AQC standards and application of controls
10. Analytical procedureSystematic description of test procedure
11. Method detection limitProcedure detection limit, limit of quantitation and measurement uncertainty
12. Expression of ResultsSignificant figures and decimal place precision if required
13. Waste DisposalDisposal of waste test materials
14. References
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Documented Operating Procedures
SOPs based on reference standard methods
n ISO 15705, 2002-11-15, Water Quality – Determination of the chemical oxygen demand index (ST-COD) – Small scale sealed – tube method.
n I.S. EN 27888: 1994 Water Quality – Determination of Electrical Conductivity
n I.S.EN 1899-1, 1899-2 "Water Quality .. Determination of Biochemical Oxygen Demand after n days"
n I.S. EN ISO 10304-2:1997 “Water Quality – Determination of Dissolved Anions by Liquid Chromatography of Ions - Part 2: Determination of Bromide, Chloride, Nitrate, Orthophosphate and Sulphate in Wastewater
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Facilities and Equipment
Licence condition:
Monitoring and analysis equipment shall be operated and maintained as necessary so
that monitoring accurately reflects the emission or discharge.
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Facilities and Equipment
n Facilitiesn Adequate spacen Adequate storagen Adequate segregation for incompatible activitiesn Environmental conditions controlled and
monitoredn General Good housekeeping measures
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Equipment
n Suitable Locationn Fit for purpose - validationn Calibration – documented programmen Maintenancen Records
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Equipment Calibration
n Documented calibration programme in place
n Equipment requiring calibration
n Procedures for calibration
n Acceptance criteria of calibrations
n Documentation of calibration
n Set calibration intervals
n Calibration records maintained
ISO 10012:2003 ---Measurement management systems -- Requirements for measurement processes and measuring equipment
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Traceability
‘Traceability is the property of a result of a measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties.’
n Traceability to the same stated reference is of essential importance for comparability of results.
n Comparability and reliability of measurement results between different laboratories are of utmost importance if they are to form an acceptable basis for decision making and implementation of regulations
Meeting the traceability Requirements of ISO17025 – An Analysts Guide November 2003 --ISBN 0-948926-20-1
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Equipment Calibration
n Internal Calibrationn Appropriate reference standardn Certificates of calibrationn Traceability to national standardsn Carried out by trained staff
n External Calibrationn Description of calibration carried outn Statement regarding traceability to National Standardsn Statement on uncertainty of measurementn Statement regarding specification and compliance
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Equipment Maintenance
n Is equipment maintained according to manufacturers recommendations and recognised practices.
n Equipment locationn Maintenance records in placen System suitability checks in place
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Laboratory Audit
2.3.1 : Equipment & Calibrationn Is a documented calibration programme in place for all necessary
equipment? n Are calibration records current for all equipment and maintained on file?n Has traceability of the calibration been established to relevant SI units
of measurement? n Is a documented maintenance programme in place in accordance with
manufactures/suppliers recommendations for equipment utilised? n Are laboratory facilities appropriate for the range of tests carried out? n Is laboratory equipment located and utilised in an appropriate manner?
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Licence Condition
‘Such procedures shall be subject to a programme of Analytical Quality Control using control standards with evaluation
of test responses’
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Analytical Quality Control
Monitor routine performance, maintain control over the system, detect errors and evaluate on-going fitness for purpose
n Accuracyn Target/mean valuen Set limitsn Monitor trends
n Precision n Replicate analysisn Set acceptance criteria
Principal Tool for this is the Control Chart
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Control Charts
Control of Accuracyn Mean control Chartn Recovery control chartn Blank control Chartn Interlaboratory comparisons
Control of Precisionn Range Chart
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AQC Chart
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AQC Chart
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Laboratory Audit
2.5 QUALITY CONTROL
INTERNAL QUALITY CONTROLn Does the Laboratory have a documented internal quality control procedure in place? n Are all relevant methods subject to internal AQC? n Are AQC subject to evaluation (are Charts maintained, are actions taken upon failure)? n Are acceptance criteria set for AQC fit for purpose?
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Laboratory Audit
External Quality Control:n Is the laboratory a participant in a laboratory proficiency
scheme?n Are procedures in place to deal with proficiency scheme
failures?
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AQC References
n ISO 13530:1997 Water quality – a guide to Analytical quality control for the Water Industry
n Nordtest Report TR 569 - - Internal Quality control – handbook for Chemical laboratories
n ISO 7870:1993 Control Charts – General guide and introduction
n ISO 8258:1991 Shewhart control charts